HD 555.23 S1:1990

Specifications for particular types of winding wires - Part 23: Solderable polyester(imide) enamelled round copper winding wire, class 180 HD 555.23 S1:1990

Scope

This standard relates to solderable enamelled round copper winding wire of class 180 with a sole coating based on polyesterimide resin which may be modified (A modified resinis a resin that has undergone a chemical change or contains one or more additives to enhance certain performance or application characteristics - It should retain the essential chemical identity of the original resin and meet all specified wire requirements - A sole coating is an insulation made of one material) - Class 180 is a thermal class that requires a minimum temperature index of 180 and a heat shock temperature of at least 200°C - The range of nominal conductor diameters covered by this standard is: Grade 1) 0,020 mm up to and including 1,600 mm - Grade 2) 0,020 mm up to and including 1,600 mm (The nominal conductor diameters are taken from IEC Publication 182-1)